Display Problems - Siemens AX72 Service Manual

Level 1- level 3 (basic)
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19 Display Problems

Fault Symptoms
Customer:
Display problems, like missing lines or columns on the LCD
or display contrast problems or illumination problems
Exchange
Display
Connector
Connector DISPLAY
Use hot air blower to remove defective component. Avoid excessive heat! Watch surrounding components!
Resolder new component afterwards.
E-commerce order number:
E-commerce order name:
Soldering temperature:
IRIS Diagnose Code:
Technical Documentation
TD_Repair_L1-L3_AX72_R1.1.pdf
Display connector
Problems
Watch for oxidation and
damaged pads of the
Connector
not
okay
Check the status of the
Connector visually
not
okay
Use the resistor test
function of a
multimeter to check
connection between
spring contacts and
soldering contacts.
The value must be
~0Ω
L36334-Z97-C205
CONNECTOR DISPLAY 10POL
~ 360°C Tip Temp.
21000 Display / Performance
22000 Display / Background Illumination
Company Confidential
GRT:
Display problems
okay
okay
2006©BenQ
Release 1.1
Back to customer
without repair
caused by customer
SCRAP
- has to be send
separately to WSC
- check for twisted or
bent contacts
- check for dry joints
Continue with
higher repair level
Page 41 of 41
01/2006

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